From patchwork Thu Jul 1 14:47:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Hostetler X-Patchwork-Id: 12354315 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5FDEC11F6A for ; Thu, 1 Jul 2021 14:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C9D946140C for ; Thu, 1 Jul 2021 14:48:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232855AbhGAOuf (ORCPT ); Thu, 1 Jul 2021 10:50:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232866AbhGAOuY (ORCPT ); Thu, 1 Jul 2021 10:50:24 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E730BC061765 for ; Thu, 1 Jul 2021 07:47:52 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id f14so8218901wrs.6 for ; Thu, 01 Jul 2021 07:47:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=FPBKBRBBPCafHEVXnDZiFc4V2cPGyq12y/pnJ2IeXvY=; b=dVUYpjVt7yPovvdZ50QO9vtrewWbkpn3GZTPbnoFq3xivs8e3oA20weO+ltkh02hcL mEo6uGO7retVFWyVjd1naYZ1irmDI5wpRjroKCabc9b92STYkLTUC2/GP4SS2qggJOI+ qatMm9ULdoqkxdQinjH7MotnRQm5ahzSsFRyyLhPuzYRxZkKBtIeFRfee4bnMd2XHTYD FV68qXT1P24kJtzz1faQSZUDjN+OGtDGSoqOAkou3ZWj5k7NTi2BvMVqrvfjDKMe02ij daCsjREA8OkE0AzQmEUMA4ywAhk4/iWB9FpGqGp318VrT+F9snvVOdHb20QDVAWyCzMU o8Ig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=FPBKBRBBPCafHEVXnDZiFc4V2cPGyq12y/pnJ2IeXvY=; b=eaHt4Yf0hE2fgjeNTWerQvykz+qhWuvtr46E99nk07OkekMRutdG1R5IpCoXRFBZ+P AvQykhEQVTMxgTzRQXhN/bkQ+Z5Rl1VKoGLPBs7Tjg+XrmKmkTgPzlyMvPKlv7AAzdZo 4++OI6qOk1kGCyz7+VphwjPwa8MANbB7luYLSnTO/oBlrFsvUtCm7SY1CbRqQzosSs2V hNky39tY+M3/OnpshEGjOHGEb/BPxrUYY+UAYfYkZ+HKkgpmBq4nlfRZYDuCZoLhFBUX EnJra86vnw2KzMeosEdmbdH3vS0ZdnjfEE017LNjpkTfaz8OM3+xTsT1XBOW0rIUsXWm aoiw== X-Gm-Message-State: AOAM533KlgINCEyQURgQwTblEC683kqZ8P9g9AnK9jWc2mZyUjdk21A2 QdLQ1TwUxtZUtmwPEsy9YQC5T4U5rII= X-Google-Smtp-Source: ABdhPJwpM/xG1mImS8itmI5s7cOWePi4XgZPprIgF6Uz+mlBChur+F80Cmk0IsygBlEOsnepCYKvJA== X-Received: by 2002:adf:fc47:: with SMTP id e7mr21404wrs.284.1625150871578; Thu, 01 Jul 2021 07:47:51 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id z3sm10069442wmi.29.2021.07.01.07.47.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jul 2021 07:47:51 -0700 (PDT) Message-Id: In-Reply-To: References: Date: Thu, 01 Jul 2021 14:47:20 +0000 Subject: [PATCH v3 10/34] t/helper/fsmonitor-client: create IPC client to talk to FSMonitor Daemon Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Johannes Schindelin , Jeff Hostetler , Derrick Stolee , Jeff Hostetler , Jeff Hostetler Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jeff Hostetler From: Jeff Hostetler Create an IPC client to send query and flush commands to the daemon. Signed-off-by: Jeff Hostetler --- Makefile | 1 + t/helper/test-fsmonitor-client.c | 121 +++++++++++++++++++++++++++++++ t/helper/test-tool.c | 1 + t/helper/test-tool.h | 1 + 4 files changed, 124 insertions(+) create mode 100644 t/helper/test-fsmonitor-client.c diff --git a/Makefile b/Makefile index 8fe1e42a435..c45caacf2c3 100644 --- a/Makefile +++ b/Makefile @@ -709,6 +709,7 @@ TEST_BUILTINS_OBJS += test-dump-split-index.o TEST_BUILTINS_OBJS += test-dump-untracked-cache.o TEST_BUILTINS_OBJS += test-example-decorate.o TEST_BUILTINS_OBJS += test-fast-rebase.o +TEST_BUILTINS_OBJS += test-fsmonitor-client.o TEST_BUILTINS_OBJS += test-genrandom.o TEST_BUILTINS_OBJS += test-genzeros.o TEST_BUILTINS_OBJS += test-hash-speed.o diff --git a/t/helper/test-fsmonitor-client.c b/t/helper/test-fsmonitor-client.c new file mode 100644 index 00000000000..f7a5b3a32fa --- /dev/null +++ b/t/helper/test-fsmonitor-client.c @@ -0,0 +1,121 @@ +/* + * test-fsmonitor-client.c: client code to send commands/requests to + * a `git fsmonitor--daemon` daemon. + */ + +#include "test-tool.h" +#include "cache.h" +#include "parse-options.h" +#include "fsmonitor-ipc.h" + +#ifndef HAVE_FSMONITOR_DAEMON_BACKEND +int cmd__fsmonitor_client(int argc, const char **argv) +{ + die("fsmonitor--daemon not available on this platform"); +} +#else + +/* + * Read the `.git/index` to get the last token written to the + * FSMonitor Index Extension. + */ +static const char *get_token_from_index(void) +{ + struct index_state *istate = the_repository->index; + + if (do_read_index(istate, the_repository->index_file, 0) < 0) + die("unable to read index file"); + if (!istate->fsmonitor_last_update) + die("index file does not have fsmonitor extension"); + + return istate->fsmonitor_last_update; +} + +/* + * Send an IPC query to a `git-fsmonitor--daemon` daemon and + * ask for the changes since the given token or from the last + * token in the index extension. + * + * This will implicitly start a daemon process if necessary. The + * daemon process will persist after we exit. + */ +static int do_send_query(const char *token) +{ + struct strbuf answer = STRBUF_INIT; + int ret; + + if (!token || !*token) + token = get_token_from_index(); + + ret = fsmonitor_ipc__send_query(token, &answer); + if (ret < 0) + die(_("could not query fsmonitor--daemon")); + + write_in_full(1, answer.buf, answer.len); + strbuf_release(&answer); + + return 0; +} + +/* + * Send a "flush" command to the `git-fsmonitor--daemon` (if running) + * and tell it to flush its cache. + * + * This feature is primarily used by the test suite to simulate a loss of + * sync with the filesystem where we miss kernel events. + */ +static int do_send_flush(void) +{ + struct strbuf answer = STRBUF_INIT; + int ret; + + ret = fsmonitor_ipc__send_command("flush", &answer); + if (ret) + return ret; + + write_in_full(1, answer.buf, answer.len); + strbuf_release(&answer); + + return 0; +} + +int cmd__fsmonitor_client(int argc, const char **argv) +{ + const char *subcmd; + const char *token = NULL; + + const char * const fsmonitor_client_usage[] = { + N_("test-helper fsmonitor-client query []"), + N_("test-helper fsmonitor-client flush"), + NULL, + }; + + struct option options[] = { + OPT_STRING(0, "token", &token, N_("token"), + N_("command token to send to the server")), + OPT_END() + }; + + if (argc < 2) + usage_with_options(fsmonitor_client_usage, options); + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(fsmonitor_client_usage, options); + + subcmd = argv[1]; + argv--; + argc++; + + argc = parse_options(argc, argv, NULL, options, fsmonitor_client_usage, 0); + + setup_git_directory(); + + if (!strcmp(subcmd, "query")) + return !!do_send_query(token); + + if (!strcmp(subcmd, "flush")) + return !!do_send_flush(); + + die("Unhandled subcommand: '%s'", subcmd); +} +#endif diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c index c5bd0c6d4c7..af879e4a5d7 100644 --- a/t/helper/test-tool.c +++ b/t/helper/test-tool.c @@ -31,6 +31,7 @@ static struct test_cmd cmds[] = { { "dump-untracked-cache", cmd__dump_untracked_cache }, { "example-decorate", cmd__example_decorate }, { "fast-rebase", cmd__fast_rebase }, + { "fsmonitor-client", cmd__fsmonitor_client }, { "genrandom", cmd__genrandom }, { "genzeros", cmd__genzeros }, { "hashmap", cmd__hashmap }, diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h index e8069a3b222..6c5134b46d9 100644 --- a/t/helper/test-tool.h +++ b/t/helper/test-tool.h @@ -21,6 +21,7 @@ int cmd__dump_split_index(int argc, const char **argv); int cmd__dump_untracked_cache(int argc, const char **argv); int cmd__example_decorate(int argc, const char **argv); int cmd__fast_rebase(int argc, const char **argv); +int cmd__fsmonitor_client(int argc, const char **argv); int cmd__genrandom(int argc, const char **argv); int cmd__genzeros(int argc, const char **argv); int cmd__hashmap(int argc, const char **argv);